CVE-2026-113802

9.3 criticalEPSS 3.5%

Wavlink WL-WN530BE1-A firmware through M30BE1_V251117 contains an OS command injection vulnerability in the sub_23B54 function of the ioos binary, which passes the unsanitized file_id parameter of /protocol.csp?opt=ovpn_file requests with type=del to popen(). A remote unauthenticated attacker can send a forged IP-FROM: 127.0.0.1 header to bypass login and execute arbitrary commands as root.

CVSS 4.0: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 3.5% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-25)
CWE: CWE-78
Published: 2026-10-20
Modified: 2026-10-21
Record from: the NVD, synced 2026-10-22

References

https://github.com/F-yyjy/cve/blob/main/WN530BE1(en).md
https://www.vulncheck.com/advisories/wavlink-wl-wn530be1-a-unauthenticated-os-command-injection-in-ioos-protocol-csp-ovpn-file-handler

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